/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.db.mpp.plan.statement.sys;

import org.apache.iotdb.commons.path.PartialPath;
import org.apache.iotdb.db.mpp.plan.analyze.QueryType;
import org.apache.iotdb.db.mpp.plan.statement.*;

import java.util.Collections;
import java.util.List;

public class AuthorStatement extends Statement implements IConfigStatement {

    private final AuthorType authorType;
    private String userName;
    private String roleName;
    private String password;
    private String newPassword;
    private String[] privilegeList;
    private List<PartialPath> nodeNameList;

    /**
     * Constructor with AuthorType.
     *
     * @param type author type
     */
    public AuthorStatement(AuthorType type) {
        super();
        authorType = type;
        switch (authorType) {
            case DROP_ROLE:
                this.setType(StatementType.DELETE_ROLE);
                break;
            case DROP_USER:
                this.setType(StatementType.DELETE_USER);
                break;
            case GRANT_ROLE:
                this.setType(StatementType.GRANT_ROLE_PRIVILEGE);
                break;
            case GRANT_USER:
                this.setType(StatementType.GRANT_USER_PRIVILEGE);
                break;
            case CREATE_ROLE:
                this.setType(StatementType.CREATE_ROLE);
                break;
            case CREATE_USER:
                this.setType(StatementType.CREATE_USER);
                break;
            case REVOKE_ROLE:
                this.setType(StatementType.REVOKE_ROLE_PRIVILEGE);
                break;
            case REVOKE_USER:
                this.setType(StatementType.REVOKE_USER_PRIVILEGE);
                break;
            case UPDATE_USER:
                this.setType(StatementType.MODIFY_PASSWORD);
                break;
            case GRANT_USER_ROLE:
                this.setType(StatementType.GRANT_USER_ROLE);
                break;
            case REVOKE_USER_ROLE:
                this.setType(StatementType.REVOKE_USER_ROLE);
                break;
            case LIST_USER_PRIVILEGE:
                this.setType(StatementType.LIST_USER_PRIVILEGE);
                break;
            case LIST_ROLE_PRIVILEGE:
                this.setType(StatementType.LIST_ROLE_PRIVILEGE);
                break;
            case LIST_USER:
                this.setType(StatementType.LIST_USER);
                break;
            case LIST_ROLE:
                this.setType(StatementType.LIST_ROLE);
                break;
            default:
        }
    }

    /**
     * Constructor with OperatorType.
     *
     * @param type statement type
     */
    public AuthorStatement(StatementType type) {
        super();
        authorType = null;
        statementType = type;
    }

    public AuthorType getAuthorType() {
        return authorType;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getRoleName() {
        return roleName;
    }

    public void setRoleName(String roleName) {
        this.roleName = roleName;
    }

    public String getPassWord() {
        return password;
    }

    public void setPassWord(String password) {
        this.password = password;
    }

    public String getNewPassword() {
        return newPassword;
    }

    public void setNewPassword(String newPassword) {
        this.newPassword = newPassword;
    }

    public String[] getPrivilegeList() {
        return privilegeList;
    }

    public void setPrivilegeList(String[] privilegeList) {
        this.privilegeList = privilegeList;
    }

    public List<PartialPath> getNodeNameList() {
        return nodeNameList != null ? nodeNameList : Collections.emptyList();
    }

    public void setNodeNameList(List<PartialPath> nodeNameList) {
        this.nodeNameList = nodeNameList;
    }

    @Override
    public <R, C> R accept(StatementVisitor<R, C> visitor, C context) {
        return visitor.visitAuthor(this, context);
    }

    @Override
    public QueryType getQueryType() {
        QueryType queryType;
        switch (authorType) {
            case CREATE_USER:
            case CREATE_ROLE:
            case DROP_USER:
            case DROP_ROLE:
            case GRANT_ROLE:
            case GRANT_USER:
            case GRANT_USER_ROLE:
            case REVOKE_USER:
            case REVOKE_ROLE:
            case REVOKE_USER_ROLE:
            case UPDATE_USER:
                queryType = QueryType.WRITE;
                break;
            case LIST_USER:
            case LIST_ROLE:
            case LIST_USER_PRIVILEGE:
            case LIST_ROLE_PRIVILEGE:
                queryType = QueryType.READ;
                break;
            default:
                throw new IllegalArgumentException("Unknown operator: " + authorType);
        }
        return queryType;
    }

    @Override
    public List<PartialPath> getPaths() {
        return nodeNameList != null ? nodeNameList : Collections.emptyList();
    }
}
